婚姻届に判を捺しただけですが E2: Two weeks have passed since the start of the faux marriage. Akiha's slovenly lifestyle clashes with Shu's orderly personality, and she reaches her wit’s end when Shu complains about her capsule toy collection. One day, Shu’s brother Asahi visits their home and asks for help preparing boxed lunches at his shop over the weekend. Shu is busy with work, so Akiha volunteers to help in his place. It is Akiha’s first time visiting her in-laws, and she is overjoyed to find that she gets on well with her brother-in-law’s wife Miharu. Akiha is not good at cooking, but she tries her best to do what she can. However, despite her best intentions, she makes an irreparable mistake.